65results about How to "Easy to integrate applications" patented technology

The invention discloses a circularly polarized ceramic antenna based on coupling and feeding of a strip line via multiple slots, comprising an upper microstrip antenna radiator, an upper dielectric substrate, a medium dielectric substrate, a lower feed strip line and a coaxial feeder, wherein the lower feed strip line comprises a dielectric substrate layer, upper and lower metal floor layers attached to the upper and lower surfaces of the dielectric substrate and a metal feeder in the middle of the dielectric substrate layer; feed slots formed by three cross slots are arranged in the center of the upper metal floor of the strip line; the metal feeder couples and feeds the upper microstrip antenna structure via the slots; and the upper and lower metal floor layers of the strip line are connected by cylindrical via holes. The antenna adopts the feed slots formed by three cross slots to increase operation bandwidth and the 3dB circularly polarized axial ratio bandwidth, adopts the squarering dielectric substrate and the strip line for coupling and feeding to increase the gain, has the characteristics of miniaturization, band broadening and compact structure, and is convenient in processing and integration.

The invention discloses a composite automatic synchronous energy transfer equalization circuit and an equalization method for a series battery pack. The circuit comprises n composite two-way battery unit energy transfer equalization modules, a master control module and equalization buses, wherein the composite two-way battery unit energy transfer equalization modules are arranged according to the number of battery units in the series battery pack; n is more than or equal to 1; the composite two-way battery unit energy transfer equalization module corresponds to a battery module consisting of k battery units which are connected in series; k is more than 1; and the composite two-way battery unit energy transfer equalization module consists of a switch matrix, an equalization control module, a two-way direct current (DC)-DC module, k discharge equalization circuits and a mode control switch. The composite automatic synchronous energy transfer equalization circuit and the equalization method for the series battery pack are high in reliability, low in cost, small in volume, light in weight, functionally comprehensive and easy to manufacture and use in large scale, and can be applied in the fields of electric vehicles, rail transit, wind-driven power generation and the like by which the series battery pack and a series capacitor bank are required.

The invention discloses a comprehensive management system for scenic regions. The comprehensive management system comprises an intelligent terminal, at least one data center and at least one positioning terminal; the intelligent terminal comprises a marketing promotion terminal or / and a service terminal or / and an industrial management terminal; the positioning terminal is used for collecting static position data of scenic spots and facilities in scenic regions; the positioning terminal is further used for collecting dynamic position data of touring vehicles, tourists and team tourists; the data center is for obtaining business information data and geographic information data; the data center performs centralized database-establishment and management according to the business information data and the geographic information data; the data center is provided with corresponding an industrial management module, a service module and a marketing promotion module according to the business information data and the geographic information data; the marketing promotion terminal establishes marketing promoting activities with the data center through the marketing promotion module; the industrial management terminal establishes industrial management activities with the data center through the industrial management module; and the service terminal establishes service activities with the data center through the service module.

The invention relates to a light filter, in particular to an integrated narrowband micro light filter. The integrated narrowband micro light filter is provided with a substrate, a dielectric film layer structure and a metal grating, wherein the dielectric film layer structure is arranged on the upper surface of the substrate and provided with at least two dielectric film layers; the refractive indexes of the dielectric film layers are different; the metal grating is arranged on the upper surface of the dielectric film layer structure and is a one-dimensional metal grating or two-dimensional metal grating. By adjusting the period of the grating and the refractive indexes and thickness of the dielectric film layers, the center wavelength and bandwidth of a passing band of the light filter can be adjusted. The integrated narrowband micro light filter is small in size and can be integrated and applied on a micro optical system and a photoelectric device conveniently. The integrated narrowband micro light filter is used for integrating the micro optical system or being integrated on the photoelectric device to achieve the light filtering function. The integrated narrowband micro light filter can be manufactured on a transparent dielectric substrate to serve as a unit element to be used on the micro optical system, and can also be integrated in the photoelectric device to serve as a structural unit so as to filter light reflected by the photoelectric device.

The invention discloses an intelligent alternating current servo drive with high integration density and high power density, and belongs to the field of advanced robot servo control. The intelligent alternating current servo drive comprises power supply, an STM32F4 main control unit, an isolated communication module, an isolated power drive unit, an encoder unit, a safety protection unit and a sensing acquisition unit which are integrated on a circuit board. The isolated communication module is connected with a host computer and the STM32F4 main control unit through an RS485 bus or a CAN bus,and an internal TIMER of the STM32F4 main control unit operates in a PWM mode. After a generated PWM waveform is subjected to level switch, the PWM waveform is output to the isolated power drive unit,and the isolated power drive unit is connected with a motor at the same time. The STM32F4 main control unit is connected with the encoder unit through an SPI bus. An ADC interface of the STM32F4 maincontrol unit is connected to the sensing acquisition unit. An EXTI interface is connected to the safety protection unit. A multi-turn absolute value encoder acquisition circuit is integrated on a motor drive to be installed by being just fit with the motor, and the integrated application on a robot body is facilitated.

The invention provides an equipment service adaptation method used in a household network. Indirect Web servitization of equipment is realized by allocating equipment service agents in a private protocol network in which the resource-limited equipments belong, and thus problems of communication and information sharing among the equipments in the household isomerous private protocol network can be solved. By adopting the service adaptation method, a group of resource-limited equipments in the private protocol network can be abstracted into virtual equipments providing standard Web services for the outside, special operations of the limited equipments in the group can be converted into standard operations based on a Web service technology, and thus a convenient manner is provided for service integration and application development oriented to the household Internet of things.

The invention relates to an atomic spin procession detecting method and an atomic spin precession detecting device based on electro-optic modulation. Alkali metal atoms in a spin-exchange relaxation free state are used for sensing an external magnetic field or angular rate, thereby generating atomic spin Larmor precession. An electro-optic modulator is used for performing electro-optic modulation on detected laser. Through output light strength detection by the electro-optic modulator and demodulation of a phase-locked amplifier, output light strength and frequency doubling signal strength are obtained. Finally a signal acquisition and processing circuit measures an atomic spin precession signal, and furthermore measurement to the external magnetic field or inertia can be realized. According to the atomic spin procession detecting method and the atomic spin procession detecting device, advantages such as simple modulation, small size, high sensitivity, low temperature effect and simple operation condition in the electro-optic modulator are exerted. The atomic spin procession detecting method and the atomic spin procession detecting device have relatively high sensitivity and relatively high stability. The novel atomic spin procession detecting method is based on an atomic spin effect and can be used for industrial integration and practical application of atomic spin sensing devices in future.

The invention provides an electric adjusting power divider with a filter function. The entire circuit structure of the electric adjusting power divider is symmetric, and the power dividing ratio is 1:1. Two pairs of quarter-wave resonators which are coupled with each other form two filter networks, and the characteristic of band-pass filtering is achieved. The matching of three ports of a circuit and the isolating of two output ports of the circuit are achieved by resistors. According to an on-load variable capacitance diode, the electrical length of the resonators and the electrical length of a feeder line are adjusted by changing the on-load voltage of the on-load variable capacitance diode, and the purpose that the center frequency is adjustable is achieved. In addition, three transmission zeros are introduced by source load coupling, so that the electric adjusting power divider has high selectivity and is also good in stopband suppression effect.

The invention relates to a wide-frequency rat-race coupler based on novel composite right-left hand (CRLH) transmission line technology and a small MIMO system based on the rat-race coupler, so as to solve the technical problems that the prior rat-race coupler and the applied system are narrow in working bandwidth and large in size. The MIMO system is provided with a wide-frequency rat-race coupler; the wide-frequency rat-race coupler comprises three CRLH unit groups, that is, a first CRLH unit group, a second CRLH unit group and a third CRLH unit group; each group is formed by two CRLH units in connection to form a head end and a tail end; and each adjacent head end and the tail end of each group are connected to form a signal transmission port. The rat-race coupler of the invention can be widely applied to a Bulter matrix feed network, a microwave power synthesis and decomposition network, a sum-difference device, an isolator, a beam-adjustable antenna, an input / output system, any microstrip antenna array in need of decoupling and a multi-channel communication system.

The invention relates to a spectral broadening device for chaotic laser signals and a method thereof. The spectral broadening device is characterized in that a first chaotic laser signal is output by an optical splitter; a second chaotic laser signal is input into a polarization control device through an optical amplifier, then is input into the optical splitter through a polarization control device and is output. The spectral broadening device is additionally provided with a ring oscillator which is used for carrying out circular amplification and oscillation on injected lights; the polarization control device adjusts the polarization state of the chaotic laser signals; and the bandwidth reaches above 26.5 GHz. The spectral broadening device has simple structure and is convenient to debug and apply.

The invention relates to a preparation method of orientation magnetic films. The method adopts a laser pulse deposition method; and phase structures of the films are controlled through controlling a magnetic field on a substrate, a deposition temperature and a nitrogen pressure to obtain a series of iron nitride films consisting of different phases. The method can prepare the iron nitride films at low temperature, facilitates integrated application of film devices, and adopts a magnetic field inducing method to generate the crystallography orientation in growth of the films so as to conveniently control crystallography easy-magnetized shafts of the films.

The invention relates to a method for manufacturing an ultra-low birefringence optical fibre, which comprises a step of manufacturing an optical fibre preform and a step of drawing the optical fibre preform and is characterized by further comprising the following steps of: before the step of drawing the optical fibre perform, at least locally heating and softening the manufactured optical fibre preform and rotating and stretching the manufactured optical fibre preform along an axial direction, and rotating, stretching and fixing the formed optical fibre preform in the cooling process of the optical fibre preform. A rotary stretching tower for manufacturing the ultra-low birefringence optical fibre comprises an upper clamping head, a lower clamping head, an upper end and a lower end, wherein the upper clamping head and the lower clamping head are vertically arranged; the upper end and the lower end are respectively used for clamping the optical fibre preform; the upper clamping head and the lower clamping head can rotate about the axis of the optical fibre preform respectively; furthermore, the upper clamping head and the lower clamping head can translate along the axis of the optical fibre perform respectively; and a heating furnace capable of translating along the axis of the optical fibre preform is also arranged between the upper clamping head and the lower clamping head and used for at least locally heating and softening the optical fibre preform.

The invention discloses a spin electronic device, an SOT-MRAM storage unit, a storage array and a storage and calculation integrated circuit. The spin electronic device comprises a ferroelectric / ferromagnetic heterostructure, a magnetic tunnel junction and a heavy metal layer arranged between the ferroelectric / ferromagnetic heterostructure and the magnetic tunnel junction. The ferroelectric / ferromagnetic heterostructure comprises a multiferroic material layer and a ferromagnetic layer which are arranged in a stacked mode, the magnetic tunnel junction comprises a free layer, an insulating layerand a reference layer which are arranged in a stacked mode, and the heavy metal layer is arranged between the ferromagnetic layer and the free layer. According to the spin electronic device, the SOT-MRAM storage unit, the storage array and the storage and calculation integrated circuit, deterministic magnetization overturning under the condition of no external field assistance can be realized.

The invention provides an ambient-temperature-independent silicon nitride micro-ring filter chip based on a vertical slit structure. The chip comprises a buffer layer plated on a silicon substrate and a core layer. The core layer is a vertical slit type micro-ring resonant cavity formed by clamping a silicon dioxide micro ring between two silicon nitride micro rings; and each of a silicon nitride micro-ring waveguide and a silicon dioxide micro-ring waveguide includes a disc waveguide and a straight waveguide. The core layer is coated by a negative-thermo-optical-coefficient outer cladding layer coated on the buffer layer. The ambient-temperature-independent silicon nitride micro-ring filter chip is characterized by the vertical slit structure; and the temperature-independent characteristic of filtering can be realized by combining the negative-thermo-optical-coefficient outer cladding layer.

The invention discloses a driving structure of a travelling wave micro motor. The driving structure comprises an annular support frame and a circular annular body, wherein the circular annular body isarranged in the annular support frame, the annular support frame and the circular annular body are connected by a plurality of support beams, a first electrode layer and a matrix are arranged on thecircular annular body from top to bottom, the first electrode layer comprises a plurality of fan-shaped electrodes which are arranged in annular way, an interval is reserved between two adjacent fan-shaped electrodes, the external diameter of each fan-shaped electrode is smaller than the external diameter of the matrix, a plurality of grooves are formed in a side wall of the matrix, openings of the grooves are arranged in central lines of the fan-shaped electrodes and an interface line of two adjacent fan-shaped electrodes, and the support beams are uniformly distributed in the grooves. In thedriving structure of the travelling wave micro motor, the vibration energy of the driving structure is limited in frame energy by the support beams and the annular support frame, the support beams are fixed at a node of the travelling wave micro motor, the vibration energy is further prevented from diffusing outwards, the energy loss is substantially reduced, and the Q value of the driving structure is increased.

The invention provides a flexible battery. The battery comprises a positive electrode end and a negative electrode end, wherein the positive electrode end comprises a first base material, a positive electrode collector, a cathode material layer, an electrolyte layer and a diaphragm; the positive electrode collector is arranged on the first surface of the first base material; the cathode material layer is arranged on the first surface of the positive electrode collector; the electrolyte layer is arranged on the first surface of the cathode material layer; the diaphragm covers the first surfaceof the electrolyte layer; the negative electrode end comprises a second base material, a negative electrode collector, a bonding layer and an anode material layer; the negative electrode collector isarranged on the second surface of the second base material; the bonding layer is arranged on the second surface of the second base material along the periphery of the negative electrode collector; theanode material layer is arranged on the second surface of the negative electrode collector; and the positive electrode end and the negative electrode end are arranged in an aligned and attached modethrough the first surface of the diaphragm and the second surface of the anode material. The structure is simple, and large-scale production is facilitated.

The invention discloses a flexible membrane keyboard based on a frictional machine and an electronic product. The flexible membrane keyboard comprises a key layer, a common layer and a signal processing circuit, wherein the key layer comprises a plurality of key areas which are independent from one another; each key area corresponds to a key and comprises a key electrode; the key electrodes are respectively connected with the signal processing circuit through key wires which are independent from one another; the common layer comprises a common electrode; the common electrode is connected with the signal processing circuit through a common wire; a frictional interface is formed between the key layer and the common layer; or the common layer comprises a structure for forming the frictional interface; or the key layer comprises a structure for forming the frictional interface. The flexible membrane keyboard is high in flexibility, is light and thin and can be conveniently used for various electronic products in an integrated manner.

The spot size converter based on the arrayed waveguide grating and the waveguide type detector adopts a double-step type waveguide structure comprising a first waveguide and a second waveguide, the first waveguide and the second waveguide are both of reverse conical waveguide structures, and the transition mode of the first waveguide and the second waveguide is parabola type transition; the large end face of the first waveguide is aligned with the large end face of the second waveguide, the large end face of the first waveguide is an incident face of output light of the array waveguide grating, the small end face of the second waveguide is a light emitting face, and light originally limited in a core layer of the first waveguide is coupled into a core layer of the second waveguide, so that a mode field is reduced, and the light emitting efficiency is improved. A mode field in the array waveguide grating is converted into a mode field in the ridge waveguide of the waveguide type detector, and matching of the array waveguide grating and the mode field of the waveguide type detector is achieved. The end face coupling mode is adopted, the light field is coupled into the absorption area from the side face, loss and scattering of the light field in the waveguide propagation process are reduced, the light coupling efficiency is further improved, and integrated application of the photoelectric detector is facilitated.

The invention provides a miniature high-power microwave link parameter conditioning instrument. The miniature high-power microwave link parameter conditioning instrument comprises an electromagnetic shielding case, more than two microwave devices, a temperature collector, a control circuit, a coaxial cable, a radio frequency adapter and a liquid crystal display module, Wherein each microwave device, the coaxial cable and the radio frequency adapter are connected to form a microwave link; the microwave devices, the temperature collector and the liquid crystal display screen are controlled by the control circuit to communicate with each other, and a control command is issued through the control circuit to control the corresponding microwave link to work; The control circuit transmits the working state information of the microwave device and the information collected by the temperature collector in the case to the liquid crystal display module, and the information is displayed by the liquid crystal display screen on the front panel in real time; The microwave device is integrated to the front panel of the electromagnetic shielding case through a coaxial cable, and the front panel is provided with a radio frequency adapter for connecting the microwave device. The system is high in integration level, facilitates the integrated application of a comprehensive automatic test system, and can greatly improve the test efficiency.

The invention relates to a light filter, in particular to an integrated narrowband micro light filter. The integrated narrowband micro light filter is provided with a substrate, a dielectric film layer structure and a metal grating, wherein the dielectric film layer structure is arranged on the upper surface of the substrate and provided with at least two dielectric film layers; the refractive indexes of the dielectric film layers are different; the metal grating is arranged on the upper surface of the dielectric film layer structure and is a one-dimensional metal grating or two-dimensional metal grating. By adjusting the period of the grating and the refractive indexes and thickness of the dielectric film layers, the center wavelength and bandwidth of a passing band of the light filter can be adjusted. The integrated narrowband micro light filter is small in size and can be integrated and applied on a micro optical system and a photoelectric device conveniently. The integrated narrowband micro light filter is used for integrating the micro optical system or being integrated on the photoelectric device to achieve the light filtering function. The integrated narrowband micro light filter can be manufactured on a transparent dielectric substrate to serve as a unit element to be used on the micro optical system, and can also be integrated in the photoelectric device to serve as a structural unit so as to filter light reflected by the photoelectric device.

The invention discloses a graphical substrate for an LED chip and a preparation method of the graphical substrate, and relates to the technical field of semiconductor packaging. In order to effectively utilize light emitted from the end surface of an epitaxial layer of the LED chip, the invention provides the graphical substrate used for the LED chip. The graphical substrate comprises a groove structure which is used for changing the propagation direction of the light emitted from the end surface of the LED chip at a short distance, so that the light loss is reduced and the light-extraction efficiency of the LED chip is greatly improved. Meanwhile, the thickness of the substrate is reduced, the serial thermal resistance of a system is reduced; the volume of a packaging module can be greatly reduced; and integrated application is facilitated. In addition, the invention provides the preparation method of the graphical substrate. The substrate is corroded through a wet process to obtain the graphical substrate with the groove structure.

The invention belongs to the technical field of microfluidic optical fiber devices, and specifically relates to a selective hydrophobic treatment method for air holes of a hollow-core photonic crystalfiber. The selective hydrophobic treatment method comprises the steps of performing selective sealing on the air holes of the hollow-core photonic crystal fiber, wherein a gas or liquid can be completely prevented from entering the sealed air holes after the air holes are sealed; and performing selective hydrophobic treatment on the air holes of the hollow-core photonic crystal fiber so as to enable the inner surfaces of the air holes to reach hydrophobic requirements. According to the invention, selective hydrophobic treatment can be performed on the air holes of the long-distance hollow-core photonic crystal fiber in one time, and each segment of the optical fiber can be directly used through cutting, thereby saving a lot of time and cost. In addition, the end face of the hollow-core photonic crystal fiber processed according to the method has no additional optical loss caused by structural damages, thereby not only being capable of realizing efficient free-space optical coupling, but also being capable of realizing low-loss connection of the optical fiber, and being an important technology in optical fiber functional device preparation and sensing application.

The invention discloses a method for manufacturing a rotary optical fiber. The method comprises a step of manufacturing an optical fiber preform and a step of drawing the optical fiber preform, wherein in the step of drawing the optical fiber preform, a lower end of the rotary optical fiber is rotated along an axial direction of the optical fiber under fiber drawing, and rotation formed in the optical fiber is fixed in the cooling process. The rotary fiber winding device for manufacturing the rotary optical fiber comprises a fiber winding disc arranged in a fiber drawing tower and under the drawn optical fiber, wherein the fiber winding disc has a shape of a spool and is used for rotating with a drawn optical fiber as a rotating axis so as to drive the lower end of the optical fiber to rotate and for rotating with a central shaft of the fiber winding disc as a rotating axis so as to wind the optical fiber. By an ultralow double refraction optical fiber product manufactured by the process and equipment, because the rotation is not generated or cured in a drawing furnace, influence of the rotation in a high-temperature melting state on optical and mechanical properties is avoided, the manufactured ultralow double refraction optical fiber has long-term reliability and stability, and the using requirement of a sensing optical fiber in a harsh environment is met.

The invention provides an electrically controllable monomolecular switch device and a preparation method thereof, and the monomolecular switch device is characterized in that terminal carboxyl (-COOH) dangling bonds formed by each pair of graphene point electrodes and molecules terminated by amino (-NH2) in a free radical type molecular bridge are subjected to amidation reaction for bridging; according to the invention, connection with a free radical type molecular bridge through an amido bond (-CO-NH-) is realized, so that molecular bridging between each pair of graphene point electrodes is realized. Therefore, the magnitude of the current between the source electrode and the drain electrode can be controlled by adjusting the input grid voltage, so that switching control is realized. That is to say, the single-molecule switching device realizes stable electric control and is beneficial to real integrated application of the single-molecule switching device.

The invention discloses a circularly polarized ceramic antenna based on coupling and feeding of a strip line via multiple slots, comprising an upper microstrip antenna radiator, an upper dielectric substrate, a medium dielectric substrate, a lower feed strip line and a coaxial feeder, wherein the lower feed strip line comprises a dielectric substrate layer, upper and lower metal floor layers attached to the upper and lower surfaces of the dielectric substrate and a metal feeder in the middle of the dielectric substrate layer; feed slots formed by three cross slots are arranged in the center of the upper metal floor of the strip line; the metal feeder couples and feeds the upper microstrip antenna structure via the slots; and the upper and lower metal floor layers of the strip line are connected by cylindrical via holes. The antenna adopts the feed slots formed by three cross slots to increase operation bandwidth and the 3dB circularly polarized axial ratio bandwidth, adopts the squarering dielectric substrate and the strip line for coupling and feeding to increase the gain, has the characteristics of miniaturization, band broadening and compact structure, and is convenient in processing and integration.

The invention discloses a single-mode multimode mode adjusting device and a preparation method thereof, the single-mode multimode mode adjusting device comprises a multimode optical fiber, a single-mode optical fiber and a tapering optical fiber, and two opposite ends of the tapering optical fiber are respectively connected with the multimode optical fiber and the single-mode optical fiber in a low-loss fusion manner. Signal transmission transition of the single-mode optical fiber and the multimode optical fiber is achieved in an optical fiber tapering mode, the diameter of a fiber core in a tapering area of the tapering optical fiber is in smooth gradual transition, mode field distortion does not exist, and transmission loss is effectively reduced; a signal in the single-mode optical fiber is transmitted into the multimode optical fiber through a low-order mode / high-order mode excited by the tapering optical fiber in a low-loss manner; the mode field excited by the single-mode optical fiber is transmitted in the multimode optical fiber and is transmitted to the single-mode optical fiber from the tapering optical fiber in a gradual transition manner, and the loss is within 0.5 dB; the welding loss of the optical fiber can be lower than 0.1 dB at present; and a support is provided for the single-mode optical module of the data center to be directly accessed into the multimode optical fiber for transmission through the single-mode optical fiber.

The invention discloses a compact air filter, comprising a frame body (1), wherein the upper, lower, left and right four side surfaces of the frame body (1) are closed, a filtering layer I (2) and a protecting wire net (4) are mounted on the front side in the frame body (1), and a filtering layer II (3) and a protecting wire net (4) are mounted on the back side in the frame body (1). An air inlet plate (6) is mounted on the left side surface or right side surface of the frame body (1) through a special-shaped insert part (5), and air inlets (7) which can be closed are formed in the middle part of the air inlet plate (6). The compact air filter adopts a structure of one frame with two elements, reduces the mounting interface, increases the filtration area, reduces resistance, improves the filtering quality, prolongs service life, and facilitates integrated application of the device; and simultaneously, by change of the air inlet interface and staged arrangement of the filtering elements to realize two-stage filtration, one structure with two functions is realized, the external dimensions of the air filter are reduced, and the service life of the air filter is prolonged.

The invention relates to an immunochromatographic test paper strip color signal quantitative detecting device, which comprises a lighting light source (1), a nontransparent shell (2), a transform lens (7), a slit (6), a photodetector (5), a primary amplification and alternating and direct (AD) control circuit (4) and a communication interface (3). By moving relative to a test paper strip along an axial direction of the test paper strip, the detector can quickly measure the detection line (T), quality control line (C) and light reflection strength of a back bottom part of the test paper strip. A connecting structure (8) is connected with different positioning accessories, so that the detector can adapt to detection of color signals of different package test paper strips. The detector has the characteristics of simple and compact structure, easy implementation, high sensitivity and low cost, and is convenient for multi-path integration or use in a handheld detection system.

The invention discloses a multi-layer substrate integrated waveguide array antenna, comprising a plane wave excitation layer, a power divider layer and an antenna radiation layer stacked in sequence from bottom to top. The plane wave excitation layer generates a plane wave and is coupled to the power divider Then, the power is distributed reasonably through the power divider layer and fed to the antenna radiation layer. Each antenna element in the antenna radiation layer obtains a reasonable electromagnetic wave amplitude and phase and radiates the electromagnetic wave to the free space. In the present invention, the plane wave excitation layer adopts a plane parabolic plane wave excitation structure, so that the spherical wave is converted into a plane wave with better characteristics in a wider frequency band, so that the antenna of the present invention can meet the working requirements of wide frequency band and low side lobes And achieve high efficiency; by adopting a multilayer substrate integrated waveguide structure in the plane wave excitation layer, the power divider layer and the antenna radiation layer, the overall structure of the antenna of the present invention is simple and compact, easy to process, low in cost, and convenient for system miniaturization and integrated application. .

The invention discloses an adjustable double-control optical switch based on near-zero dielectric constant indium tin oxide and a method for using the same. The transmission spectrum of the structure can be adjusted by means of external voltage or pump light irradiation, so as to adjust the switching of different wavelengths. / off ratio, so it can be adjusted according to the actual situation; the optical switch has a simple manufacturing process and is compatible with the existing CMOS process, and can be produced on a large scale using an integrated process, reducing the production cost; the optical switch has nano-scale integration The size is convenient for technicians to carry out integrated applications; it has the characteristics of ultra-fast response time, works at the communication wavelength, and has broad application prospects; it has excellent performance and has a large switching depth and modulation range.